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Recursive Calculation of Effective Potential and Variational Resummation

Sebastian F. Brandt·Hagen Kleinert·Axel Pelster
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Abstract

We set up a method for a recursive calculation of the effective potential which is applied to a cubic potential with imaginary coupling. The result is resummed using variational perturbation theory (VPT), yielding an exponentially fast convergence.

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Sebastian F. Brandt, Hagen Kleinert, Axel Pelster. 2004-06-27. Recursive Calculation of Effective Potential and Variational Resummation. https://doi.org/10.1063/1.1824212

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